We've had some hounds who have had endless cysts - fast as we'd take them off, others would appear. In the end, rather than all that, we'd just leave them unless they appeared in a difficult place, or burst. I think you may find you need some antibiotics to help this burst one heal up. However, I'd not leap in and get them taken off - much as it might be wise to have the occasional one checked in case it happens to be a 'nasty' - fine needle aspirate.

The sister of the boy I'm using in my avatar at the moment was continually getting these - he never had one!!

Thanks for the reply, no I'm not going to rush to have it removed, if only his vet would do it under a local then yes. Thought we'd got rid of it earlier this year when it was spooned (think that's the term) but burst again a few days ago. I'm aware that surgery is probably the only answer but I'm always looking for options, ideas to try, Many thanks.